The annual Historical Home Tour featuring six or more private homes representing the architecture of the late 19th and early 20th century. The tour begins at the Shell Club House. (1635 Pacheco Blvd.)10 a.m.; Shell Club House, 1635 Pacheco Blvd., Martinez. $25-$30. (925) 864-8457. www.martinezhometour.com

Donna Greenwald will have a trunk show at the monthly meeting. 7 p.m. First Baptist Church of Elk Grove, 8939 E. Stockton Blvd., Elk Grove. Free to members; $3 guests. (916) 686-1654.

Next Saturday

Historic City Cemetery Tour

The Old City Cemetery Committee will be offering a tour focusing on perennials blooming throughout the Historic City Cemetery. 10 a.m. Sacramento Historic City Cemetery, 1000 Broadway, Sacramento. (916) 448-0811)

Learn about Roseville’s popular Cash for Grass Program and the steps to take for having year-round color and creating a water-efficient landscape. 11 a.m. Roseville Utility Exploration Center, 1501 Pleasant Grove Blvd., Roseville. $6 Roseville residents; $8 non-residents. (916) 746-1550.

Sheet Mulching and Composting Basics to Improve Soil Health

Learn how to use sheet mulching to naturally recycle unwanted lawn into rich compost for a new landscape. Follow simple steps to create a home composting system that will improve garden soil throughout the year. Each participating family will receive a compost bin (truck, van or SUV needed to transport). 8:30 a.m. Roseville Utility Exploration Center, 1501 Pleasant Grove Blvd., Roseville. $6 Roseville residents; $8 non-residents. (916) 746-1550.

Landscaping with Ornamental Grasses

Learn about different ornamental grasses that are easy to care for and lend themselves to the El Dorado County’s climate with the El Dorado County Master Gardeners. 9 a.m. Veterans’ Memorial Hall, 130 Placerville Dr., Placerville. Free. (530) 621-5512.

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A new Elk Grove, California aquatics center opens Memorial Day weekend and features an Olympic-size pool, a lazy river and water slides. The city hopes to attract competitive swimmers and novices this summer.